Locomotive track-sander.



No. 648,709. Patented May l, |900. C. A. PBATTE.

LOGMOTIVE- TRACK SANDER.

(Application mea .nm s, 1900.)

(No Model.)

@nu at 1m y concern: l, nosmathand', CHARLES A. PRATrfno-ff; o. ityoflo'lelrlyl -i Randolph county, State of Missenrig-.llaveznventedcertain newfand 5 sejfn-l'lImpnofqnzents Locomotive Track-fv andlprovid-ed .fin YAifLs 'runder side with aslatted tzd'eec 'polnreference bei-ng Shad'fto maw-ings, forming; a par-t g i ling Loprevententra-nce of parbi'cleswhich hereof.. f fro cenfti-onnlauesto,pneiumatlicdevlces fo lsri-becngsad zupon lthe rails infront 20123;' reofrjthevdnvingwheels lof locomojives'; 5Qandit-consistsof fthe novell con struction,Vcombil-nationyandzarnzmgementof parts -hereiulafg 15 tendesclibedzandkela med.

The .object of my invention io provide .a f 'pneumatic .sanding devicewhich- :shall ,profk duce im-pnoveff results "in operation, bes-im- ;ple:in-const ruction, :and capable vof being vzo yquie-lily app'l ed1:toold or 'new' locomotives.

der side of one of Lhe ejectors.

In carrying-oni; my "invention .of apairof sand-ejectons =1 Elocated,pref-.er-

4o connects .thle lupper end -o'f the sand-pipe .7 -to lthe out-e11 'endof said ejector.

v,ply'ing san-d .to Lt-he'fo rward discharge -fp-i pes 7 'while theflocomotive is lmnnng ahead; :but it I is .eyident that by .aredupicaton -of he pants ,5o .my improved '.sandngfdevice unaybe.applied 1go lfdfiscfhange'sa-nd :both i-n .advance :and Ein :the

-I 'pipe ,155, vand when is desired fao fdseharge rear ielf Thelooomo'o' Ye d rive-wheels.

The vejeciaors are preferably located 'a "little :forward of the .usual:discharge-opening 8 and as'lfjghl; dis Lance @above the rsame, for.ltihe v.purpose yherej 45 linafter mentioned.

Ifha'vc shown o-nlyiapair of eject-01:5 for sup- UNITED STATES* PATENT()Mflfce.A

[gems-fa; fon Mommy', M IssomIL44 'i 1 Application filed .January i8,QOO. l Serial No,165 8. (No model.)

9 .f1 indicate the l-orclonax'y sand-valves ap-v plied-to :the usualdischarge-openings S. `The :ejectors l are formed xvi-bh a centra-1enlarge! Vment l0., upon the :interior of .which yisan air- :ohamber'which is plteferably closed above :or ygnated aopeni njg 1'1, LhroughWhich-.thesand enters '.-the ejector, the 'slats lor bars l2 serv- )an"air -jet 13, arranged toadisc'harge across' .the vin-tenior'of Jcheenlargement l0 and 'into `:the combining-tube 14 of `theejector, An ;a`rpipe 1.5 su pples air -from the air 'brake system of the dooomotiv-e,VTas is uslial fin zthfis class .of devices, and said pipe is couped :at

.fan opening -18 in the rear-.ofi fthe sand-box 3, and :the interior Aofsaid `'box :is .provided with branches lv20, from fwhch lead air-pipes:2l to each `ej ector said pipes 'be-ing connected yto Yche inner fendof'fbhe ejector .by .means-:of :a

Thefsediimenda-trap is composedo'f the lbody .17=,'1aying its innerwalls threaded vat one end and 'm ount ed :n pon ithe screw-threadedsection .23, 'wihzn which is formed vra cylindrical 1re- :cess 2.4. Atmp-tube 125 Eis connected at its Sinner-end to the air-passagesio'ffthe branches .20a-nd projects voutwardly -tl11`11ou gh the said Lrecess:2i and lnto the Arajp-chamberof "the body 17 Iand is .located.centrally-of .the said recess and lsaid lehamber. A body of hai-r.,lWool, yor otlhfea suitable yd1111;-col'leoiiihgfmafoerial -is'1o'.ca1ted`wivhi-n tkhe :said ave'cess :24, asn-1'- lnou'nd-ng saidtrap-tube 2'5, :and fiaredrling or funnel-'26 is interposed between said`co1- lecti'ng zmateial and 'the 'trap-chamber. `The -apexial cap '2 7and ka series foff :sm all apertures 28 .are formed in ysaid A'farbe:adjacent the 'base iof said cap.

The operation Fis es follows.: Thensnpply-of ailr is regulated :means-sof :a col'namoncoek Sor Mal-neinobshown) appli-ed fto 1an fair-"simplywardly in the direction indicated by the arrow in Fig. v2 and throughthe space between the bars, and the same is discharged into the pipes 7and onto the rails. l have found that during the operation there will beau accumulation ot' larger particles of sand and gravel directly beneaththe ejectors, and in order to dispose of these it will only be necessaryto open the usual discharge-valves il, allowing the saine to bedischarged through the apertures 8. All particles Aof sediment or dirtwhich might clog up the air-jets 13 are prevented from entering saidjets by being first passed through the sediment or dirt trap, theoperation of which is'as follows, Fig. 3: Air carrying dirt or sedimententering by way'of the air-s u ppl y pipe l5 strikes the apexialhead 27of the trap-tube 25 and is therebydeflected from its course, and thedirt or sediment by reason of its momentum passes onward and strikes theflared ring or funnel 26 and is thereby deflected into the collectingmaterial contained in the recess 24,whereit is retained until cleanedout by detaching the body '17;

The air after being separated from dirt and sediment passes from theapertures 28 into the trap-tube 25, and thence into the pipes 2l andejectors in the manner hereinbefore described. 5'?

I claimn l. The improved pneumatic sander, comprising a pair ofsand-ejectors l located in apertures 2 formed in the vertical Wall ofthe ,sand-box 3 opposite each other and held in position by jam-nuts 5,asand-pipe 7 secured to the outer end of each of said ejectors, the'air-pipevl, and two branch air-pipes 2110- cated within said sand-boxand connecting both of said ejectors with said air-pipe, all incombination with the common or usual sanddischarge openings S, andordinary sandvalves 0, saidv ejectors being located each near one ofsaid openings S for the purpose of discharging the accumulation oflarger particles of sand or gravel which form directly beneath saidejectors, substantially as specified.

2. .The improved sandingdevice for locomotives, comprising asuitablesand-ejector, an air-jet for said ejector, a sediment-trapinterposed in the air-supply pipe lbetween-said ejector and the sourceof air-supplyandeomposed of a chamber, a trap-tube connected at itsinner end to the wall of said chamber and projecting outwardly therein,a body of dirtcollecting material located- Within said chamber andsurrounding said trap-tube, a defiector interposed between saidcollecting material and the'air-entrance, .and a suitable cap forthe'free end of said, tube, substantially as specified.

In testimony whereof I aiiix 'my signature in presence of two witnesses.

CHARLES A. rnzrrrn. Witnesses: f

J. E. BRIcGs, H. A. HATFIELD.

